There is disclosed an antibacterial glass composite that may be made of components harmless to the human body and have excellent durability and chemical resistance, thereby maintaining an antibacterial function for a long time, and a manufacturing method thereof.

An article including a glass having that includes SiO.sub.2, Al.sub.2O.sub.3, and B.sub.2O.sub.3 and least one of Li.sub.2O, Na.sub.2O, K.sub.2O, MgO, CaO, SrO, BaO, SnO.sub.2, ZnO, La.sub.2O.sub.3, F, and Fe.sub.2O.sub.3, wherein the glass includes a dielectric constant of about 10 or less and/or a loss tangent of about 0.01 or less, both as measured with signals at 10 GHz.

Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.

There is disclosed an antibacterial glass composite and a manufacturing method thereof. The antibacterial glass composite may include 15 to 40% by weight (wt) of SiO.sub.2: 20 to 40% wt of B.sub.2O.sub.3: 10 to 30% wt of at least one of Na.sub.2O, K.sub.2O and Li.sub.2O; to 15% wt of at least one of MgO and TiO.sub.2; 5 to 40% wt of at least one of ZnO and CaO; to 10% wt of CuO; and 0.1 to 3% wt of Ag.sub.2O, thereby having an anti-biofilm effect.

A glass powder composite includes a first glass powder, and a second glass powder having a different solubility from that of the first glass powder depending on pH, wherein both the first glass powder and the second glass powder have ion sustained-release properties.

A method of producing flint glass using submerged combustion melting involves introducing a vitrifiable feed material into a glass melt contained within a submerged combustion melter. The vitrifiable feed material is formulated to provide the glass melt with a glass chemical composition suitable for producing flint glass articles. To that end, the glass melt comprises a total iron content expressed as Fe.sub.2O.sub.3 in an amount ranging from 0.04 wt % to 0.06 wt % and also has a redox ratio that ranges from 0.1 to 0.4, and the vitrifiable feed material further includes between 0.008 wt % and 0.016 wt % of selenium or between 0.1 wt % and 0.2 wt % of manganese oxide in order to achieve an appropriate content of selenium or manganese oxide in the glass melt.

The present invention provides a glass sheet having soda-lime-silica glass composition with a high visible light transmittance (L.sub.tC) of at least 89% with a dominant wavelength (DW) from about 490 to 505 nanometers and purity (Pe) of no more than 1% for control thickness of 5.66 mm and methods of making the same. The glass composition comprising a low iron raw material, a total iron oxide (Fe.sub.2O.sub.3) of 0.02 to 0.06 wt. %, ferrous (FeO) from 0.006 to 0.02 wt. %, redox (FeO/Fe.sub.2O.sub.3) from about 0.30 to 0.55, Cr.sub.2O.sub.3 from about 0.3 to 10 ppm, TiO.sub.2 from about 50 to 500 ppm, SnO.sub.2 from about 10 to 500 ppm, and a critical amount from about 0.10 to 0.25 wt. % of SO.sub.3. The low content of iron oxide is achieved by the partial substitution of regular raw materials by low iron raw materials, with a complete substitution of regular dolomite by a low iron dolomite with a maximum content of 0.020 wt. % Fe.sub.2O.sub.3.

Methods and a glass manufacturing system are described herein that impact compaction in a glass sheet. For instance, a method is described herein for impacting compaction in a glass sheet made by a glass manufacturing system. In addition, a glass manufacturing system is described herein which manufactures a glass sheet that meets a compaction target. Plus, a method is described herein for maintaining an uniform compaction between glass sheets made by different glass manufacturing systems.

An optical glass includes La.sup.3+, Zn.sup.2+, Nb.sup.5+, and Ti.sup.4+ as a cation configuring glass. La.sup.3+, Zn.sup.2+, Nb.sup.5+, and Ti.sup.4+ which satisfy 10 cat %≤La.sup.3+≤20 cat %, 10 cat %≤Zn.sup.2+≤60 cat %, 20 cat %≤Nb.sup.5+≤60 cat %, and 0 cat %≤Ti.sup.4+≤40 cat % expressed by cation %.

One or more glass articles include an aluminum oxide containing silicate glass matrix. The glass matrix has less than 1 SiO.sub.2-enriched glassy sphere of compositional inhomogeneities per 15 g of glass.